Knowledge, it would appear, is in crisis. With the advent of the Internet and the limitless information it contains, we're less sure about what we know, who knows what, or even what it means to know at all. And yet, human knowledge has recently grown in previously unimaginable ways and in inconceivable directions. In Too Big to Know, internet philosopher David Weinberger explains that, rather than a systemic collapse, the Internet era represents a fundamental change in the methods we have for understanding the world around us. In the past, an expert was someone who had mastered a well-defined domain. Now, we live in an age when topics are blown apart and stitched together by diverse connections. Weinberger shows that, while the limits of paper-based tools have historically prevented us from achieving our full capacity of knowledge, we can now be as smart as our new network medium allows - but we will be smart differently. Rather than knowing-by-reducing, we are now knowing-by-including. Knowledge will never be the same - not for science, not for business, not for education, not for government, not for any of us. Full of rich and sometimes surprising examples from history, politics, business, philosophy, and science, Too Big to Know describes how the very foundations of knowledge have been overturned, and what this revolution means for our future.